Datasheet

430
32117D–AVR-01/12
AT32UC3C
BURST: Transfer Burst Size
Indicates the size of the burst used for data transfer. The MDMA will always try to use this burst size to perform transfers, but
may be forced to use smaller sizes since the transfer count may not be perfectly divisible by the transfer data size:
SIZE: Transfer Data Size
Indicates the size of data to transfer:
TCNT: Transfer Count
The number of data to transfer. The size of each data is given in the SIZE field.
Configuring a transfer with a TCNT of 0 is illegal, and may result in UNDEFINED behavior.
Table 21-4. Transfer Burst Size
BURST Transfer Burst Size
0 Single transfer
1 4-beat burst
2 8-beat burst
3 16-beat burst
Table 21-5.
SIZE Transfer Data Size
0 Byte
1 Halfword
2Word
3 Unused